Synthesis and Electrical Properties of Covalent Organic Frameworks with Heavy Chalcogens

Duhović, Selma; Dincă, Mircea

doi:10.1021/acs.chemmater.5b02358

Cited by 102 publications

(88 citation statements)

References 57 publications

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“…The detailed procedure of iodine doping can be found in the Supporting Information. The values obtained herein are among some of the highest values reported in COFs to date . In addition, these conductivity studies are the first reports for COFs with covalently bound TCNQ moieties.…”

Section: Resultssupporting

confidence: 56%

“…Herein, we demonstrate that the donor–acceptor alignment in well‐defined frameworks could drastically affect the electronic properties of the materials, resulting in circa 100 000 000‐fold conductivity enhancement, one of the largest increases reported for COFs . We probed charge transfer rates within the Marcus theory as a function of acceptor stacking.…”

Section: Introductionmentioning

confidence: 97%

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A Dual Threat: Redox‐Activity and Electronic Structures of Well‐Defined Donor–Acceptor Fulleretic Covalent‐Organic Materials

et al. 2020

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The effect of donor (D)–acceptor (A) alignment on the materials electronic structure was probed for the first time using novel purely organic porous crystalline materials with covalently bound two‐ and three‐dimensional acceptors. The first studies towards estimation of charge transfer rates as a function of acceptor stacking are in line with the experimentally observed drastic, eight‐fold conductivity enhancement. The first evaluation of redox behavior of buckyball‐ or tetracyanoquinodimethane‐integrated crystalline was conducted. In parallel with tailoring the D‐A alignment responsible for “static” changes in materials properties, an external stimulus was applied for “dynamic” control of the electronic profiles. Overall, the presented D–A strategic design, with stimuli‐controlled electronic behavior, redox activity, and modularity could be used as a blueprint for the development of electroactive and conductive multidimensional and multifunctional crystalline porous materials.

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Section: Resultssupporting

confidence: 56%

Section: Introductionmentioning

confidence: 97%

A Dual Threat: Redox‐Activity and Electronic Structures of Well‐Defined Donor–Acceptor Fulleretic Covalent‐Organic Materials

et al. 2020

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“…[14][15][16][17] Inspired by the exceptional high mobility in graphene planes, it is of great interest to sight the intrinsic carrier mobility in π-conjugated backbone of 2D COFs. However, the further understanding of the electric property of 2D COFs faces great challenges.…”

Section: Introductionmentioning

confidence: 99%

Selective Growth of Covalent Organic Framework Ultrathin Films on Hexagonal Boron Nitride

Sun

Dong

et al. 2016

J. Phys. Chem. C

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Incorporating the intriguing covalent organic framework (COF) into devices and performing their advanced electronic nature are still challenging. Herein, we demonstrate the direct growth of 2D full-conjugated COF ultrathin films on dielectric hexagonal boron nitride (hBN) for the first time and study the carrier transporting characteristics of π-conjugated COF films. Under the optimized solvothermal conditions, few-layered COF-366 films with the covalent connection of tetra(p-aminophenyl)porphyrin and terephthaladehyde are selectively fabricated on mechanically exfoliated hBN flakes. COF-366 films on hBN substrate present red-shift absorption edge and decreased band gap compared to the bulk COF powders.The organic field-effect transistor device based on COF-366 ultrathin films demonstrates p-type current modulation with an On/Off ratio of 10 5 and mobility of 0.015 cm 2 V -1 s -1 . The present work represents a universal method for COF film growth on dielectric surface, and also provides important insight to the carrier transport of 2D π-conjugated system and potential applications of 2D COFs in electronics.

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“…Covalent organic frameworks (COFs) are crystalline, porous polymer networks with programmable pore sizes and high internal surface areas. [1][2][3][4][5][6][7] The readily designable structure of COFs, based on monomer choice, is ideal for a range of applications 8 including separations, 9,10 catalysis, [11][12][13] energy devices, [14][15][16][17][18] and gas storage. 19,20 COF synthesis relies on self-assembly via reversible covalent linkages, which allow for the correction of structural defects during formation to generate the crystalline framework.…”

mentioning

confidence: 99%

Controlling the crystalline structure of imine-linked 3D covalent organic frameworks

et al. 2019

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Synthesis and Electrical Properties of Covalent Organic Frameworks with Heavy Chalcogens

Cited by 102 publications

References 57 publications

A Dual Threat: Redox‐Activity and Electronic Structures of Well‐Defined Donor–Acceptor Fulleretic Covalent‐Organic Materials

A Dual Threat: Redox‐Activity and Electronic Structures of Well‐Defined Donor–Acceptor Fulleretic Covalent‐Organic Materials

Selective Growth of Covalent Organic Framework Ultrathin Films on Hexagonal Boron Nitride

Controlling the crystalline structure of imine-linked 3D covalent organic frameworks

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